According to our records, this business is located at 3330 Clayton Rd. in Concord (in Contra Costa County), California 94519, the location GPS coordinates are: 37.9719009 (latitude), -122.0168014 (longitude). Dennis Contreras Vocational is categorized under Skill Training Center (SIC code 8331). Current estimates show that the unit has a sales volume of $232,000 and staff of approximately 4 people. You can contact the company by phone at (925) 687-1309.